Appearance: Yellow or orange yellow crystalline powder Assay: 96%min Loss on drying: 10.0%max Sulphated ash: 0.5%max Related substances: 2.0%max Package: 25kg/fibre drum

CAS NO:13553-79-2

EC NO:236-938-4

Molecular Formula:C₃₇H₄₅NO₁₂

Molecular Weight:695.7527

Synonyms:;1,4-Dideoxy-1,4-dihydro-1,4-dioxo-rifamycin;1,4-Dideoxy-1,4-dihydro-1,4-dioxorifamycin;BRN 0604802;NCI 144-130;NSC 144130;Rifomycin S;UNII-PI53N820JV;2,7-(Epoxypentadeca(1,11,13)trienimino)naphtho(2,1-b)furan-1,6,9,11(2H)-tetrone, 5,17,19,21-tetrahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-, 21-acetate;Rifamycin, 1,4-dideoxy-1,4-dihydro-1,4-dioxo-;(14E,24E)-5,17,19-trihydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-1,6,9,11-tetraoxo-1,2,6,9-tetrahydro-2,7-(epoxypentadeca[1,11,13]trienoimino)naphtho[2,1-b]furan-21-yl acetate;5,17,19-trihydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-1,6,9,11-tetraoxo-1,2,6,9-tetrahydro-2,7-(epoxypentadeca[1,11,13]trienoimino)naphtho[2,1-b]furan-21-yl acetate;(2S,12Z,14E,16S,17S,18R,19R,20R,21S,22R,23S,24E)-5,17,19-trihydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-1,6,9,11-tetraoxo-1,2,6,9-tetrahydro-2,7-(epoxypentadeca[1,11,13]trienoimino)naphtho[2,1-b]furan-21-yl acetate;

Molecular Structure: